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Finding the Fourth Proportional to 554,425.80, 830,472.30 and 461,113.80

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Solution

The fourth proportional to 554,425.80, 830,472.30 and 461,113.80 is: 690,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,425.80 : 830,472.30 = 461,113.80 : x
  2. Step 2: Convert to fraction form
    554,425.80/830,472.30 = 461,113.80/x
  3. Step 3: Cross multiply
    554,425.80x = 830,472.30 × 461,113.80
  4. Step 4: Simplify right side
    554,425.80x = 382,942,238,047.74
  5. Step 5: Solve for x
    x = 382,942,238,047.74/554,425.80
  6. Step 6: Final answer
    x = 690,700.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.